20415620

素因数分解:

$2^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{3607}}^1$

素因数の和:3899

約数の個数: 24

約数和(自身を含む): 43036224

約数和(自身を除く): 22620604

約数列:

[1, 2, 4, 5, 10, 20, 283, 566, 1132, 1415, 2830, 3607, 5660, 7214, 14428, 18035, 36070, 72140, 1020781, 2041562, 4083124, 5103905, 10207810, 20415620]

約数ペア:

[(1, 20415620), (2, 10207810), (4, 5103905), (5, 4083124), (10, 2041562), (20, 1020781), (283, 72140), (566, 36070), (1132, 18035), (1415, 14428), (2830, 7214), (3607, 5660)]